281991621

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1\times {\mathrm{401}}^1$

素因数の和:629

約数の個数: 32

約数和(自身を含む): 399427200

約数和(自身を除く): 117435579

約数列:

[1, 3, 29, 59, 87, 137, 177, 401, 411, 1203, 1711, 3973, 5133, 8083, 11629, 11919, 23659, 24249, 34887, 54937, 70977, 164811, 234407, 686111, 703221, 1593173, 2058333, 3241283, 4779519, 9723849, 93997207, 281991621]

約数ペア:

[(1, 281991621), (3, 93997207), (29, 9723849), (59, 4779519), (87, 3241283), (137, 2058333), (177, 1593173), (401, 703221), (411, 686111), (1203, 234407), (1711, 164811), (3973, 70977), (5133, 54937), (8083, 34887), (11629, 24249), (11919, 23659)]